I was thinking more in terms of procedures. Look for waiting lists, those are the procedures where the government–chosen price is too low. Meanwhile more profitable procedures will not have a waiting list.

Medicines are more complicated because the manufacturer will probably have patents that grant them a manufacturing monopoly, meaning they can always set the price to whatever they want anyway. Not to mention that a multinational can afford to make less in some countries as long as on average they make enough to continue doing research. If Germany somehow sets a price that is egregiously low, the manufacturer can simply sell their medicine elsewhere instead.